1N4736AP/TR12

Overview

The Microchip Technology 1N4736AP/TR12 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation with a nominal Zener voltage of 6.8 V and a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features a maximum reverse current of 10 µA at a test voltage of 4 V. Packaged in tape and reel format per EIA-296 standards, it offers flexible mounting terminals and is classified as Level 1 for moisture sensitivity.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for standard installation
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 Method 1020

Applications

• Voltage regulation circuits requiring 6.8 V reference
• Power supply protection and clamping applications
• General-purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify that the ordering suffix TR12 corresponds to the specific tape and reel packaging configuration required for automated assembly processes. Confirm compliance with RoHS directives if lead-free terminations are necessary for the target application environment. Ensure the procurement documentation explicitly references the JEDEC registered type number to guarantee adherence to the specified electrical characteristics and performance tolerances.

Selection Notes

Select this component when a 6.8 V Zener voltage with ±5% tolerance is required for power dissipation up to 1.0 watt. The plastic encapsulation offers lower thermal resistance compared to glass-body options. Consider the axial-lead form factor for through-hole mounting requirements. Verify that the operating temperature range of -65°C to +150°C aligns with the environmental conditions of the intended system design.

Part Context

This part belongs to the widely used 1N4728A through 1N4764A series of 1.0-watt Zener diodes. The series covers a voltage selection from 3.3 to 100 volts. The 'P' suffix indicates plastic construction, while the 'TR' suffix denotes tape and reel packaging. These devices are JEDEC registered and offer various screening levels and tighter tolerance options available through different suffix identifiers.

Replacement Considerations

Equivalent parts include other manufacturers' 1N4736A or 1N4736AP variants in the DO-41 package. Surface mount equivalents such as SMAJ4736A or MLL4736A may be considered if footprint changes are permissible. Verify that replacement devices meet the same 1.0 W power dissipation and 6.8 V Zener voltage specifications.